Home / 4,263.86-6,387.28-3,387.85

Finding the Fourth Proportional to 4,263.86, 6,387.28 and 3,387.85

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Solution

The fourth proportional to 4,263.86, 6,387.28 and 3,387.85 is: 5,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,263.86 : 6,387.28 = 3,387.85 : x
  2. Step 2: Convert to fraction form
    4,263.86/6,387.28 = 3,387.85/x
  3. Step 3: Cross multiply
    4,263.86x = 6,387.28 × 3,387.85
  4. Step 4: Simplify right side
    4,263.86x = 21,639,146.55
  5. Step 5: Solve for x
    x = 21,639,146.55/4,263.86
  6. Step 6: Final answer
    x = 5,075.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.